[s-cars] 3071 turbo & Pastore RS2 code question

[Tom Mullane]

I tried this on my S6, and was not happy with the results.  Neither the
manual controller nor the WGFV was able to control boost very well.  I
quickly abandoned it and refocused on fixing the problem: the software.

Going back a few months, this seems to lend support to Dave Dawson's theory
about the WGFV creating a venturi that results in a vacuum at the WG that
actually helps hold it shut against pressures greater than the spring alone
could resist.  Installing a MBC might bleed off the vacuum.

Tom

Date: Tue, 21 Mar 2006 08:58:44 -0500
From: "Mark Strangways" <Strangconst at rogers.com>
Subject: Re: [s-cars] 3071 turbo & Pastore RS2 code question
To: "Joe Pizzimenti" <joe.pizzimenti at gmail.com>
Cc: Scar <s-car-list at audifans.com>
Message-ID: <02a201c64cef$944878b0$6400000a at Strangwaysgroup>
Content-Type: text/plain;       charset="iso-8859-1"

No, the manual boost control would not get the pressure to open (or vacuum
to hold closed :-) ) the wastegate until the overboost happened.

You would place it in parallel to the n75 WGFV, there it would act as an
upper limit or an operating controller what erver mode you wanted.

Mark,
 ----- Original Message -----
 From: Joe Pizzimenti
 To: Mark Strangways
 Cc: chris chambers ; Scar
 Sent: Tuesday, March 21, 2006 8:17 AM
 Subject: Re: [s-cars] 3071 turbo & Pastore RS2 code question


 Can you just install a manual boost controller in line with the N75 so that
it maintains the same boost curve, but doesn't allow it to reach 30psi?